From f274dd3250da675a2c40db8061337f5d320718c7 Mon Sep 17 00:00:00 2001
From: Aaron Barnard <abarnard@protonmail.com>
Date: Wed, 11 Sep 2019 11:04:12 +1000
Subject: [PATCH 1/3] Handle new MetaMask error structure, add notification for
 unknown MetaMask errors.

---
 src/js/helpers/utilities.js      | 7 +++++--
 src/js/logic/send-transaction.js | 2 +-
 src/js/views/content.js          | 4 +++-
 src/js/views/event-to-ui.js      | 6 ++++--
 4 files changed, 13 insertions(+), 6 deletions(-)

diff --git a/src/js/helpers/utilities.js b/src/js/helpers/utilities.js
index 70a1ef69..283d3e53 100644
--- a/src/js/helpers/utilities.js
+++ b/src/js/helpers/utilities.js
@@ -131,14 +131,16 @@ export function assistLog(log) {
   console.log('Assist:', log) // eslint-disable-line no-console
 }
 
-export function extractMessageFromError(message) {
-  if (!message) {
+export function extractMessageFromError(error) {
+  if (!error.stack || !error.message) {
     return {
       eventCode: 'txError',
       errorMsg: undefined
     }
   }
 
+  const message = error.stack || error.message
+
   if (message.includes('User denied transaction signature')) {
     return {
       eventCode: 'txSendFail',
@@ -177,6 +179,7 @@ export function eventCodeToType(eventCode) {
     case 'txAwaitingApproval':
     case 'txConfirmReminder':
     case 'txUnderpriced':
+    case 'txError':
     case 'error':
       return 'failed'
     case 'txConfirmed':
diff --git a/src/js/logic/send-transaction.js b/src/js/logic/send-transaction.js
index e1d9a79d..fdf3fdbf 100644
--- a/src/js/logic/send-transaction.js
+++ b/src/js/logic/send-transaction.js
@@ -386,7 +386,7 @@ async function onTxReceipt(id, categoryCode, receipt) {
 }
 
 function onTxError(id, error, categoryCode) {
-  const { errorMsg, eventCode } = extractMessageFromError(error.message)
+  const { errorMsg, eventCode } = extractMessageFromError(error)
 
   let txObj = getTxObjFromQueue(id)
 
diff --git a/src/js/views/content.js b/src/js/views/content.js
index 03f1ecc8..dba696e4 100644
--- a/src/js/views/content.js
+++ b/src/js/views/content.js
@@ -381,5 +381,7 @@ export const transactionMsgs = {
   txCancel: ({ transaction }) =>
     `Your transaction ID: ${transaction.nonce} is being canceled`,
   txUnderpriced: () =>
-    'The gas price for your transaction is too low, try again with a higher gas price'
+    'The gas price for your transaction is too low, try again with a higher gas price',
+  txError: () =>
+    'An unknown error has occurred with your transaction, please try again'
 }
diff --git a/src/js/views/event-to-ui.js b/src/js/views/event-to-ui.js
index 0e46049f..7a59c3f6 100644
--- a/src/js/views/event-to-ui.js
+++ b/src/js/views/event-to-ui.js
@@ -79,7 +79,8 @@ const eventToUI = {
     txFailed: notificationsUI,
     txSpeedUp: notificationsUI,
     txCancel: notificationsUI,
-    txUnderpriced: notificationsUI
+    txUnderpriced: notificationsUI,
+    txError: notificationsUI
   },
   activeContract: {
     txAwaitingApproval: notificationsUI,
@@ -95,7 +96,8 @@ const eventToUI = {
     txFailed: notificationsUI,
     txSpeedUp: notificationsUI,
     txCancel: notificationsUI,
-    txUnderpriced: notificationsUI
+    txUnderpriced: notificationsUI,
+    txError: notificationsUI
   },
   userInitiatedNotify: {
     success: notificationsUI,

From d96162f4526d7381fd62994bd478ad8cfa0ea163 Mon Sep 17 00:00:00 2001
From: Aaron Barnard <abarnard@protonmail.com>
Date: Wed, 11 Sep 2019 11:17:35 +1000
Subject: [PATCH 2/3] Update docs to include txUnderpriced and txError event
 codes

---
 README.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/README.md b/README.md
index 6354a7fc..8254e1ec 100644
--- a/README.md
+++ b/README.md
@@ -194,6 +194,8 @@ var config = {
     txSent: Function, // Transaction has been sent to the network
     txPending: Function, // Transaction is pending and has been detected in the mempool
     txSendFail: Function, // Transaction failed to be sent to the network
+    txUnderpriced: Function, // Transaction gas limit was set too low
+    txError: Function, // An unknown MetaMask / JSON RPC error occurred when trying to send the transaction
     txStallPending: Function, // Transaction was sent to the network but has not been detected in the txPool
     txStallConfirmed: Function, // Transaction has been detected in the mempool but hasn't been confirmed
     txFailed: Function, // Transaction failed

From 80b836ab3a3a9b9d20b6fb440eb7a3738b3ebb2d Mon Sep 17 00:00:00 2001
From: Aaron Barnard <abarnard@protonmail.com>
Date: Wed, 11 Sep 2019 12:01:14 +1000
Subject: [PATCH 3/3] Increment version

---
 README.md    | 6 +++---
 package.json | 2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/README.md b/README.md
index 8254e1ec..9dd3146b 100644
--- a/README.md
+++ b/README.md
@@ -43,16 +43,16 @@ yarn add bnc-assist
 #### Script Tag
 
 The library uses [semantic versioning](https://semver.org/spec/v2.0.0.html).
-The current version is 0.10.2.
+The current version is 0.10.3.
 There are minified and non-minified versions.
 Put this script at the top of your `<head>`
 
 ```html
-<script src="https://assist.blocknative.com/0-10-2/assist.js"></script>
+<script src="https://assist.blocknative.com/0-10-3/assist.js"></script>
 
 <!-- OR... -->
 
-<script src="https://assist.blocknative.com/0-10-2/assist.min.js"></script>
+<script src="https://assist.blocknative.com/0-10-3/assist.min.js"></script>
 ```
 
 ### Initialize the Library
diff --git a/package.json b/package.json
index 8f39e750..8782e305 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "bnc-assist",
-  "version": "0.10.2",
+  "version": "0.10.3",
   "description": "Blocknative Assist js library for Dapp developers",
   "main": "lib/assist.min.js",
   "scripts": {